If (-x^2 + y^2) is subtracted from (x^2 + y^2), the difference is A.2x^2
B.0
C. -2x^2
D. —2x^2– 2y^2

If is subtracted from , the difference is:

Option A is correct option.

Step-by-step explanation:

If is subtracted from , we need to find the difference.

When finding the difference the term after from comes first.

We can write:

Now finding difference:

Multiply minus sign with terms inside the bracket

Now combine the like terms

So, If is subtracted from , the difference is:

Option A is correct option.

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950